AD5227BUJZ100-RL7

Digital Potentiometers Overview

The AD5227BUJZ100-RL7 is a 64-position digital potentiometer manufactured by Analog Devices Inc. It features a 100 kΩ end-to-end terminal resistance and operates on a single supply voltage ranging from 2.7 V to 5.5 V. The device utilizes a simple 3-wire up/down interface (CS, CLK, U/D) for manual or high-speed digital control. Key electrical specifications include a typical supply current of 0.4 μA, an adjustment settling time of 1 μs, and a nominal resistor tolerance of ±20%. It is housed in a compact TSOT-23-8 package and supports an automotive temperature range of −40°C to +105°C.

Digital Potentiometers Feature Summary

• 64-step resolution with linear taper and volatile memory
• Low power consumption with 0.4 μA typical supply current
• Simple 3-wire serial interface compatible with microcontrollers
• Automotive qualified operating temperature range (-40°C to +105°C)

Digital Potentiometers Applications

• Mechanical potentiometer and trimmer replacements
• LCD backlight, contrast, and brightness controls
• Portable electronics level adjustment

Digital Potentiometers Procurement Notes

Verify the specific resistance value suffix (e.g., 100 for 100 kΩ) matches the design requirement. Confirm the package type is TSOT-23-8 and the tape/reel quantity aligns with manufacturing needs. Ensure the volatile memory characteristic is acceptable for the application, as settings are lost upon power loss.

Digital Potentiometers Selection Notes

Select this component when replacing mechanical pots requires solid-state reliability and higher resolution. Consider the 100 kΩ resistance value against bandwidth requirements; higher resistance reduces bandwidth. Verify that the 3-wire interface logic levels are compatible with the host controller. Check if non-volatile storage is needed, as this model lacks EEPROM.

Digital Potentiometers Part Context

This part belongs to the AD5227 family of 64-position up/down control digital potentiometers. Variants exist with different terminal resistances, such as 10 kΩ and 50 kΩ. The 'BUJZ' designation indicates the automotive grade and TSOT-23-8 package, while '-RL7' specifies the tape and reel packaging format.

Digital Potentiometers Replacement Considerations

Direct functional substitutes within the same family include AD5227BUJZ50-RL7 (50 kΩ) and AD5227BUJZ10-RL7 (10 kΩ). Other families like AD5207 offer SPI interfaces and non-volatile memory but require different pinouts and control logic.